Publication | Open Access
In Situ Exsolved Ni-Decorated Ba(Ce<sub>0.9</sub>Y<sub>0.1</sub>)<sub>0.8</sub>Ni<sub>0.2</sub>O<sub>3−δ</sub> Perovskite as Carbon-Resistant Composite Anode for Hydrocarbon-Fueled Solid Oxide Fuel Cells
12
Citations
25
References
2019
Year
In this study, in situ exsolved Ni-Ba(Ce<sub>0.9</sub>Y<sub>0.1</sub>)<sub>0.8</sub>Ni<sub>0.2</sub>O<sub>3-δ</sub>+Gd<sub>0.1</sub>Ce<sub>0.9</sub>O<sub>1.9</sub> (Ni-BCYN+GDC) perovskite anode is studied for application in hydrocarbon-fueled solid oxide fuel cell (SOFC). The electrocatalytic activities of the oxidation reaction of anode in hydrogen and methane atmospheres are studied. The results show that the surface-exsolved Ni nanoparticles can significantly improve the electrochemical properties of the anode. The polarization resistances of the studied anode in hydrogen and methane atmospheres at 750 °C are as low as 0.0042 and 0.0054 Ω·cm<sup>-2</sup>, respectively. At the same time, a 36 h short-term open-circuit voltage test under a methane atmosphere confirms that the Ni-BCYN+GDC composite anode exhibits a good carbon deposition resistance. These results demonstrate that the Ni-BCYN+GDC composite anode is a potential novel anode material candidate for hydrocarbon-fueled SOFC.
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